A Study of Radioactive Contamination of Crystals for the AMoRE Experiment

Lee, J. Y.; Аленков, В. В.; Ali, Liakat; Beyer, J.; Bibi, R.; Boiko, R. S.; Boonin, K.; Бузанов, О. А.; Chanthima, N.; Cheoun, Myung-Ki; Chernyak, D.; Choi, Jun‐Ho; Choi, S.; Danevich, F.A.; Djamal, Mitra; Drung, D.; Enss, C.; Fleischmann, A.; Gangapshev, A. M.; Gastaldo, L.; Gavriljuk, Yu. M.; Gezhaev, A. M.; Gurentsov, V.; Hahn, I. S.; Jeon, E. J.; Jo, H. S.; Joo, Hyun-Woo; Kaewkhao, J.; Kang, Chu-Shik; Kang, Sang Jun; Kang, W. G.; Karki, Sujita; Kazalov, V. V.; Khan, Sajid; Khanbekov, Nikita; Kim, G. B.; Kim, H. J.; Kim, H. O.; Kim, I.; Kim, J. H.; Kim, K.; Kim, S. K.; Kim, S. R.; Kim, S. Y.; Kim, Y. D.; Kim, Y. H.; Kirdsiri, K.; Ko, Young Jin; Kobychev, V.; Kornoukhov, V. N.; Kuzminov, V. V.; Lee, H. J.; Lee, H. S.; Lee, J. H.; Lee, J. M.; Lee, K. B.; Lee, M. H.; Lee, M. K.; Leonard, D. S.; Li, J.; Li, Y. J.; Limkitjaroenporn, P.; J., K.; Mineev, O.; Mokina, V.M.; Olsen, S. L.; Panasenko, S. I.; Pandey, Indra Raj; Park, H. K.; Park, H. S.; Park, K. S.; Poda, D.V.; Polischuk, O. G.; Polozov, P.; Prihtiadi, H.; Ratkevich, S. S.; J., S.; Rooh, Gul; So, J. H.; Srisittipokakun, N.; Tekueva, J A; Tretyak, V. I.; Veresnikova, A.; Wirawan, Rahadi; Yakimenko, S. P.; Yershov, N.; Yoon, Won-Sik; Yoon, Y. S.; Yue, Qian

doi:10.1109/tns.2016.2530828

Cited by 17 publications

(8 citation statements)

References 12 publications

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“…60 The measurements of the radioactive contamination of the developed 40 Ca 100 MoO 4 crystals have been done by operating them as scintillation detectors at Yangyang Underground Laboratory (Korea). The first produced samples (0.2-0.4 kg each) exhibit a factor 10 variation of the U/Th content 88,113 as a result of the optimization of the raw material purification and the crystal growth; the best achieved purity is reported in Table 3. These 40 Ca 100 MoO 4 crystals are presently used in the AMoRE-pilot experiment (1.5 kg total crystal mass) at Yangyang Underground Laboratory (Korea).…”

Section: Zn 100 Moomentioning

confidence: 99%

Low background techniques in bolometers for double-beta decay search

Poda

Giuliani

2017

Int. J. Mod. Phys. A

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Bolometers are low temperature particle detectors with high energy resolution and detection efficiency. Some types of bolometric detectors are also able to perform an efficient particle identification. A wide variety of radiopure dielectric and diamagnetic materials makes the bolometric technique favorable for applications in astroparticle physics. In particular, thanks to their superior performance, bolometers play an important role in the world-wide efforts on searches for neutrinoless double-beta decay. Such experiments strongly require an extremely low level of the backgrounds that can easily mimic the process searched for. Here we overview recent progress in the development of low background techniques for bolometric double-beta decay searches.Comment: Review, a part of IJMPA Special Issue on Low Background Technique

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Section: Zn 100 Moomentioning

confidence: 99%

Low background techniques in bolometers for double-beta decay search

Poda

Giuliani

2017

Int. J. Mod. Phys. A

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“…Phonon-mediated cryogenic detectors using massive absorbers are a mature technology extensively employed in rare event physics experiments, like neutrinoless double beta decay (0νDBD) searches [1] (see for example CUORE [2], CUPID-0 [3], LUMINEU [4], AMoRE [5]...) and dark matter direct detection experiments [6,7] (EDELWEISS [8] , Super-CDMS [9], CRESST [10]...). Generally the working temperature is <100 mK and the most common phonon sensors are Neutron Transmutation Doped (NTD) Ge thermistors, which are glued to the detector surface and depending on the gluing characteristics are more or less sensitive to the ballistic component, or Transition Edge Sensors (TES), which usually are sensitive to the ballistic phonons.…”

Section: Introductionmentioning

confidence: 99%

Measurements and Simulations of Athermal Phonon Transmission from Silicon Absorbers to Aluminum Sensors

et al. 2019

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Phonon reflection/transmission at the interfaces plays a fundamental role in cryogenic particle detectors, in which the optimization of the phonon signal at the sensor (in case of phonon-mediated detectors) or the minimization of the heat transmission (when the detection occurs in the sensor itself) is of primary importance to improve sensitivity. Nevertheless the mechanisms governing the phonon physics at the interfaces are still not completely understood. The two more successful models, Acoustic Mismatch Model (AMM) and Diffuse Mismatch Model (DMM) are not able to explain all the accumulated experimental data, and the measurement of the transmission coefficients between the materials remains a challenge. Here, we use measurements of the athermal phonon flux in aluminium Kinetic Inductance Detectors (KID) deposited on silicon substrates following a particle interaction to validate a Monte Carlo (MC) phonon simulation. We apply the Mattis-Bardeen theory to derive the phonon pulse energy and timing from the KID signal and compare the results with the MC for both AMM and DMM models, finding a remarkable good agreement for AMM. For an aluminum film of 60 nm and a silicon substrate of 380 µm, we obtain transmission coefficients Si-Al in the range [0.3 -0.55] and Si-Teflon in the range [0.1 -0.15].

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“…In particular, the fabrication of high quality CaMoO 4 crystals from calcium depleted in 48 Ca and molybdenum enriched in 100 Mo ( 48depl Ca 100 MoO 4 ) has been developed [455]. The 2νDBD-activity of 48 Ca (in spite of 0.2% content in natural calcium [456]) can represent a major background contribution to the 100 Mo 0νDBD ROI [296,451,452], thus, the 48 Ca content in calcium used for the AMoRE crystals production is reduced below 0.001% [457]. The purification of the starting materials has been adopted to improve the crystal quality and radiopurity [81,455,458,459].…”

Section: Calcium Molybdatementioning

confidence: 99%

Scintillation in Low-Temperature Particle Detectors

Poda

2021

Physics

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Inorganic crystal scintillators play a crucial role in particle detection for various applications in fundamental physics and applied science. The use of such materials as scintillating bolometers, which operate at temperatures as low as 10 mK and detect both heat (phonon) and scintillation signals, significantly extends detectors performance compared to the conventional scintillation counters. In particular, such low-temperature devices offer a high energy resolution in a wide energy interval thanks to a phonon signal detection, while a simultaneous registration of scintillation emitted provides an efficient particle identification tool. This feature is of great importance for a background identification and rejection. Combined with a large variety of elements of interest, which can be embedded in crystal scintillators, scintillating bolometers represent powerful particle detectors for rare-event searches (e.g., rare alpha and beta decays, double-beta decay, dark matter particles, neutrino detection). Here, we review the features and results of low-temperature scintillation detection achieved over a 30-year history of developments of scintillating bolometers and their use in rare-event search experiments.

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A Study of Radioactive Contamination of Crystals for the AMoRE Experiment

Cited by 17 publications

References 12 publications

Low background techniques in bolometers for double-beta decay search

Low background techniques in bolometers for double-beta decay search

Measurements and Simulations of Athermal Phonon Transmission from Silicon Absorbers to Aluminum Sensors

Scintillation in Low-Temperature Particle Detectors

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